From drug + -ability.
druggability (plural druggabilities)
- (genetics, medicine) The ability of a portion of a genome to be targeted by a drug, especially by a small molecule drug
2007 March, Joanna Owens, “Determining druggability”, in Nature Reviews Drug Discovery[1], volume 6, number 3, →DOI, →ISSN, pages 187–187:A target's druggability is usually estimated by classifying it with known gene families that have previously been successfully targeted with drugs.